Reservoir coaster



FIG. 1 is a perspective view of a reservoir coaster;

FIG. 2 is a top plan view of the reservoir coaster shown in FIG. 1; and,

FIG. 3 is a side elevational view thereof.

All sides of the reservoir coaster are identical to the side shown inFIG. 3. The bottom of the reservoir coaster is flat and devoid ofsurface ornamentation. The ornamental design which is claimed is shownin solid lines in the drawings.

CLAIM The ornamental design for a reservoir coaster, as shown anddescribed.